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CV-based slab allocation for ops
[perl5.git] / makedef.pl
1 #./perl -w
2 #
3 # Create the export list for perl.
4 #
5 # Needed by WIN32 and OS/2 for creating perl.dll,
6 # and by AIX for creating libperl.a when -Duseshrplib is in effect,
7 # and by VMS for creating perlshr.exe.
8 #
9 # Reads from information stored in
10 #
11 #    %Config::Config (ie config.sh)
12 #    config.h
13 #    embed.fnc
14 #    globvar.sym
15 #    intrpvar.h
16 #    miniperl.map (on OS/2)
17 #    perl5.def    (on OS/2; this is the old version of the file being made)
18 #    perlio.sym
19 #    perlvars.h
20 #    regen/opcodes
21 #
22 # plus long lists of function names hard-coded directly in this script.
23 #
24 # Writes the result to STDOUT.
25 #
26 # Normally this script is invoked from a makefile (e.g. win32/Makefile),
27 # which redirects STDOUT to a suitable file, such as:
28 #
29 #    perl5.def   OS/2
30 #    perldll.def Windows
31 #    perl.exp    AIX
32 #    perl.imp    NetWare
33 #    makedef.lis VMS
34
35 BEGIN { unshift @INC, "lib" }
36 use Config;
37 use strict;
38
39 my %ARGS = (CCTYPE => 'MSVC', TARG_DIR => '');
40
41 my %define;
42
43 my $fold;
44
45 sub process_cc_flags {
46     foreach (map {split /\s+/, $_} @_) {
47         $define{$1} = $2 // 1 if /^-D(\w+)(?:=(.+))?/;
48     }
49 }
50
51 while (@ARGV) {
52     my $flag = shift;
53     if ($flag =~ /^(?:CC_FLAGS=)?(-D\w.*)/) {
54         process_cc_flags($1);
55     } elsif ($flag =~ /^(CCTYPE|FILETYPE|PLATFORM|TARG_DIR)=(.+)$/) {
56         $ARGS{$1} = $2;
57     } elsif ($flag eq '--sort-fold') {
58         ++$fold;
59     }
60 }
61
62 require "$ARGS{TARG_DIR}regen/embed_lib.pl";
63
64 {
65     my @PLATFORM = qw(aix win32 wince os2 netware vms test);
66     my %PLATFORM;
67     @PLATFORM{@PLATFORM} = ();
68
69     die "PLATFORM undefined, must be one of: @PLATFORM\n"
70         unless defined $ARGS{PLATFORM};
71     die "PLATFORM must be one of: @PLATFORM\n"
72         unless exists $PLATFORM{$ARGS{PLATFORM}};
73 }
74
75 # Is the following guard strictly necessary? Added during refactoring
76 # to keep the same behaviour when merging other code into here.
77 process_cc_flags(@Config{qw(ccflags optimize)})
78     if $ARGS{PLATFORM} ne 'win32' && $ARGS{PLATFORM} ne 'wince'
79     && $ARGS{PLATFORM} ne 'netware';
80
81 # Add the compile-time options that miniperl was built with to %define.
82 # On Win32 these are not the same options as perl itself will be built
83 # with since miniperl is built with a canned config (one of the win32/
84 # config_H.*) and none of the BUILDOPT's that are set in the makefiles,
85 # but they do include some #define's that are hard-coded in various
86 # source files and header files and don't include any BUILDOPT's that
87 # the user might have chosen to disable because the canned configs are
88 # minimal configs that don't include any of those options.
89
90 my @options = sort(Config::bincompat_options(), Config::non_bincompat_options());
91 print STDERR "Options: (@options)\n" unless $ARGS{PLATFORM} eq 'test';
92 $define{$_} = 1 foreach @options;
93
94 my %exportperlmalloc =
95     (
96        Perl_malloc              =>      "malloc",
97        Perl_mfree               =>      "free",
98        Perl_realloc             =>      "realloc",
99        Perl_calloc              =>      "calloc",
100     );
101
102 my $exportperlmalloc = $ARGS{PLATFORM} eq 'os2';
103
104 open(CFG, '<', 'config.h') || die "Cannot open config.h: $!\n";
105 while (<CFG>) {
106     $define{$1} = 1 if /^\s*\#\s*define\s+(MYMALLOC|MULTIPLICITY
107                                            |SPRINTF_RETURNS_STRLEN
108                                            |(?:PERL|USE|HAS)_\w+)\b/x;
109 }
110 close(CFG);
111
112 # perl.h logic duplication begins
113
114 if ($define{PERL_IMPLICIT_SYS}) {
115     $define{PL_OP_SLAB_ALLOC} = 1;
116 }
117
118 if ($define{USE_ITHREADS}) {
119     if (!$define{MULTIPLICITY}) {
120         $define{MULTIPLICITY} = 1;
121     }
122 }
123
124 $define{PERL_IMPLICIT_CONTEXT} ||=
125     $define{USE_ITHREADS} ||
126     $define{MULTIPLICITY} ;
127
128 if ($define{USE_ITHREADS} && $ARGS{PLATFORM} ne 'win32' && $^O ne 'darwin') {
129     $define{USE_REENTRANT_API} = 1;
130 }
131
132 # perl.h logic duplication ends
133
134 print STDERR "Defines: (" . join(' ', sort keys %define) . ")\n"
135      unless $ARGS{PLATFORM} eq 'test';
136
137 my $sym_ord = 0;
138 my %ordinal;
139
140 if ($ARGS{PLATFORM} eq 'os2') {
141     if (open my $fh, '<', 'perl5.def') {
142       while (<$fh>) {
143         last if /^\s*EXPORTS\b/;
144       }
145       while (<$fh>) {
146         $ordinal{$1} = $2 if /^\s*"(\w+)"\s*(?:=\s*"\w+"\s*)?\@(\d+)\s*$/;
147         # This allows skipping ordinals which were used in older versions
148         $sym_ord = $1 if /^\s*;\s*LAST_ORDINAL\s*=\s*(\d+)\s*$/;
149       }
150       $sym_ord < $_ and $sym_ord = $_ for values %ordinal; # Take the max
151     }
152 }
153
154 my %skip;
155 # All platforms export boot_DynaLoader unconditionally.
156 my %export = ( boot_DynaLoader => 1 );
157
158 sub try_symbols {
159     foreach my $symbol (@_) {
160         ++$export{$symbol} unless exists $skip{$symbol};
161     }
162 }
163
164 sub readvar {
165     # $hash is the hash that we're adding to. For one of our callers, it will
166     # actually be the skip hash but that doesn't affect the intent of what
167     # we're doing, as in that case we skip adding something to the skip hash
168     # for the second time.
169
170     my $file = $ARGS{TARG_DIR} . shift;
171     my $hash = shift;
172     my $proc = shift;
173     open my $vars, '<', $file or die die "Cannot open $file: $!\n";
174
175     while (<$vars>) {
176         # All symbols have a Perl_ prefix because that's what embed.h sticks
177         # in front of them.  The A?I?S?C? is strictly speaking wrong.
178         next unless /\bPERLVAR(A?I?S?C?)\(([IGT]),\s*(\w+)/;
179
180         my $var = "PL_$3";
181         my $symbol = $proc ? &$proc($1,$2,$3) : $var;
182         ++$hash->{$symbol} unless exists $skip{$var};
183     }
184 }
185
186 if ($ARGS{PLATFORM} ne 'os2') {
187     ++$skip{$_} foreach qw(
188                      PL_cryptseen
189                      PL_opsave
190                      Perl_GetVars
191                      Perl_dump_fds
192                      Perl_my_bcopy
193                      Perl_my_bzero
194                      Perl_my_chsize
195                      Perl_my_htonl
196                      Perl_my_memcmp
197                      Perl_my_memset
198                      Perl_my_ntohl
199                      Perl_my_swap
200                          );
201     if ($ARGS{PLATFORM} eq 'vms') {
202         ++$skip{PL_statusvalue_posix};
203         # This is a wrapper if we have symlink, not a replacement
204         # if we don't.
205         ++$skip{Perl_my_symlink} unless $Config{d_symlink};
206     } else {
207         ++$skip{PL_statusvalue_vms};
208         if ($ARGS{PLATFORM} ne 'aix') {
209             ++$skip{$_} foreach qw(
210                                 PL_DBcv
211                                 PL_generation
212                                 PL_lastgotoprobe
213                                 PL_modcount
214                                 PL_timesbuf
215                                 main
216                                  );
217         }
218     }
219 }
220
221 if ($ARGS{PLATFORM} ne 'vms') {
222     # VMS does its own thing for these symbols.
223     ++$skip{$_} foreach qw(
224                         PL_sig_handlers_initted
225                         PL_sig_ignoring
226                         PL_sig_defaulting
227                          );
228     if ($ARGS{PLATFORM} ne 'win32') {
229         ++$skip{$_} foreach qw(
230                             Perl_do_spawn
231                             Perl_do_spawn_nowait
232                             Perl_do_aspawn
233                              );
234     }
235 }
236
237 unless ($define{UNLINK_ALL_VERSIONS}) {
238     ++$skip{Perl_unlnk};
239 }
240
241 unless ($define{'DEBUGGING'}) {
242     ++$skip{$_} foreach qw(
243                     Perl_debop
244                     Perl_debprofdump
245                     Perl_debstack
246                     Perl_debstackptrs
247                     Perl_pad_sv
248                     Perl_pad_setsv
249                     Perl_hv_assert
250                     PL_watchaddr
251                     PL_watchok
252                     PL_watch_pvx
253                          );
254 }
255
256 if ($define{'PERL_IMPLICIT_SYS'}) {
257     ++$skip{$_} foreach qw(
258                     Perl_my_popen
259                     Perl_my_pclose
260                          );
261     ++$export{$_} foreach qw(perl_get_host_info perl_alloc_override);
262     ++$export{perl_clone_host} if $define{USE_ITHREADS};
263 }
264 else {
265     ++$skip{$_} foreach qw(
266                     PL_Mem
267                     PL_MemShared
268                     PL_MemParse
269                     PL_Env
270                     PL_StdIO
271                     PL_LIO
272                     PL_Dir
273                     PL_Sock
274                     PL_Proc
275                     perl_alloc_using
276                     perl_clone_using
277                          );
278 }
279
280 unless ($define{'PERL_OLD_COPY_ON_WRITE'}) {
281     ++$skip{Perl_sv_setsv_cow};
282 }
283
284 unless ($define{'USE_REENTRANT_API'}) {
285     ++$skip{PL_reentrant_buffer};
286 }
287
288 if ($define{'MYMALLOC'}) {
289     try_symbols(qw(
290                     Perl_dump_mstats
291                     Perl_get_mstats
292                     Perl_strdup
293                     Perl_putenv
294                     MallocCfg_ptr
295                     MallocCfgP_ptr
296                     ));
297     unless ($define{USE_ITHREADS}) {
298         ++$skip{PL_malloc_mutex}
299     }
300 }
301 else {
302     ++$skip{$_} foreach qw(
303                     PL_malloc_mutex
304                     Perl_dump_mstats
305                     Perl_get_mstats
306                     MallocCfg_ptr
307                     MallocCfgP_ptr
308                          );
309 }
310
311 if ($define{'PERL_USE_SAFE_PUTENV'}) {
312     ++$skip{PL_use_safe_putenv};
313 }
314
315 unless ($define{'USE_ITHREADS'}) {
316     ++$skip{PL_thr_key};
317 }
318
319 # USE_5005THREADS symbols. Kept as reference for easier removal
320 ++$skip{$_} foreach qw(
321                     PL_sv_mutex
322                     PL_strtab_mutex
323                     PL_svref_mutex
324                     PL_cred_mutex
325                     PL_eval_mutex
326                     PL_fdpid_mutex
327                     PL_sv_lock_mutex
328                     PL_eval_cond
329                     PL_eval_owner
330                     PL_threads_mutex
331                     PL_nthreads
332                     PL_nthreads_cond
333                     PL_threadnum
334                     PL_threadsv_names
335                     PL_thrsv
336                     PL_vtbl_mutex
337                     Perl_condpair_magic
338                     Perl_new_struct_thread
339                     Perl_per_thread_magicals
340                     Perl_thread_create
341                     Perl_find_threadsv
342                     Perl_unlock_condpair
343                     Perl_magic_mutexfree
344                     Perl_sv_lock
345                      );
346
347 unless ($define{'USE_ITHREADS'}) {
348     ++$skip{$_} foreach qw(
349                     PL_check_mutex
350                     PL_op_mutex
351                     PL_regex_pad
352                     PL_regex_padav
353                     PL_dollarzero_mutex
354                     PL_hints_mutex
355                     PL_my_ctx_mutex
356                     PL_perlio_mutex
357                     PL_stashpad
358                     PL_stashpadix
359                     PL_stashpadmax
360                     Perl_alloccopstash
361                     Perl_clone_params_del
362                     Perl_clone_params_new
363                     Perl_parser_dup
364                     Perl_dirp_dup
365                     Perl_cx_dup
366                     Perl_si_dup
367                     Perl_any_dup
368                     Perl_ss_dup
369                     Perl_fp_dup
370                     Perl_gp_dup
371                     Perl_he_dup
372                     Perl_mg_dup
373                     Perl_re_dup_guts
374                     Perl_sv_dup
375                     Perl_sv_dup_inc
376                     Perl_rvpv_dup
377                     Perl_hek_dup
378                     Perl_sys_intern_dup
379                     perl_clone
380                     perl_clone_using
381                     Perl_stashpv_hvname_match
382                     Perl_regdupe_internal
383                     Perl_newPADOP
384                          );
385 }
386
387 unless ($define{'PERL_IMPLICIT_CONTEXT'}) {
388     ++$skip{$_} foreach qw(
389                     PL_my_cxt_index
390                     PL_my_cxt_list
391                     PL_my_cxt_size
392                     PL_my_cxt_keys
393                     Perl_croak_nocontext
394                     Perl_die_nocontext
395                     Perl_deb_nocontext
396                     Perl_form_nocontext
397                     Perl_load_module_nocontext
398                     Perl_mess_nocontext
399                     Perl_warn_nocontext
400                     Perl_warner_nocontext
401                     Perl_newSVpvf_nocontext
402                     Perl_sv_catpvf_nocontext
403                     Perl_sv_setpvf_nocontext
404                     Perl_sv_catpvf_mg_nocontext
405                     Perl_sv_setpvf_mg_nocontext
406                     Perl_my_cxt_init
407                     Perl_my_cxt_index
408                          );
409 }
410
411 unless ($define{'PL_OP_SLAB_ALLOC'}) {
412     ++$skip{$_} foreach qw(
413                      PL_OpPtr
414                      PL_OpSlab
415                      PL_OpSpace
416                          );
417 }
418
419 unless ($define{'PERL_DEBUG_READONLY_OPS'}) {
420     ++$skip{$_} foreach qw(
421                     PL_slab_count
422                     PL_slabs
423                          );
424 }
425
426 unless ($define{'PERL_NEED_APPCTX'}) {
427     ++$skip{PL_appctx};
428 }
429
430 unless ($define{'PERL_NEED_TIMESBASE'}) {
431     ++$skip{PL_timesbase};
432 }
433
434 unless ($define{'DEBUG_LEAKING_SCALARS'}) {
435     ++$skip{PL_sv_serial};
436 }
437
438 unless ($define{'DEBUG_LEAKING_SCALARS_FORK_DUMP'}) {
439     ++$skip{PL_dumper_fd};
440 }
441
442 unless ($define{'PERL_DONT_CREATE_GVSV'}) {
443     ++$skip{Perl_gv_SVadd};
444 }
445
446 if ($define{'SPRINTF_RETURNS_STRLEN'}) {
447     ++$skip{Perl_my_sprintf};
448 }
449
450 unless ($define{'PERL_USES_PL_PIDSTATUS'}) {
451     ++$skip{PL_pidstatus};
452 }
453
454 unless ($define{'PERL_TRACK_MEMPOOL'}) {
455     ++$skip{PL_memory_debug_header};
456 }
457
458 unless ($define{PERL_MAD}) {
459     ++$skip{$_} foreach qw(
460                     PL_madskills
461                     PL_xmlfp
462                          );
463 }
464
465 unless ($define{'MULTIPLICITY'}) {
466     ++$skip{$_} foreach qw(
467                     PL_interp_size
468                     PL_interp_size_5_16_0
469                          );
470 }
471
472 unless ($define{'PERL_GLOBAL_STRUCT'}) {
473     ++$skip{PL_global_struct_size};
474 }
475
476 unless ($define{'PERL_GLOBAL_STRUCT_PRIVATE'}) {
477     ++$skip{$_} foreach qw(
478                     PL_my_cxt_keys
479                     Perl_my_cxt_index
480                          );
481 }
482
483 unless ($define{HAS_MMAP}) {
484     ++$skip{PL_mmap_page_size};
485 }
486
487 if ($define{HAS_SIGACTION}) {
488     ++$skip{PL_sig_trapped};
489
490     if ($ARGS{PLATFORM} eq 'vms') {
491         # FAKE_PERSISTENT_SIGNAL_HANDLERS defined as !defined(HAS_SIGACTION)
492         ++$skip{PL_sig_ignoring};
493     }
494 }
495
496 unless ($define{USE_LOCALE_COLLATE}) {
497     ++$skip{$_} foreach qw(
498                     PL_collation_ix
499                     PL_collation_name
500                     PL_collation_standard
501                     PL_collxfrm_base
502                     PL_collxfrm_mult
503                     Perl_sv_collxfrm
504                     Perl_sv_collxfrm_flags
505                          );
506 }
507
508 unless ($define{USE_LOCALE_NUMERIC}) {
509     ++$skip{$_} foreach qw(
510                     PL_numeric_local
511                     PL_numeric_name
512                     PL_numeric_radix_sv
513                     PL_numeric_standard
514                          );
515 }
516
517 unless ($define{HAVE_INTERP_INTERN}) {
518     ++$skip{$_} foreach qw(
519                     Perl_sys_intern_clear
520                     Perl_sys_intern_dup
521                     Perl_sys_intern_init
522                     PL_sys_intern
523                          );
524 }
525
526 if ($define{HAS_SIGNBIT}) {
527     ++$skip{Perl_signbit};
528 }
529
530 if ($define{'PERL_GLOBAL_STRUCT'}) {
531     readvar('perlvars.h', \%skip);
532     # This seems like the least ugly way to cope with the fact that PL_sh_path
533     # is mentioned in perlvar.h and globvar.sym, and always exported.
534     delete $skip{PL_sh_path};
535     ++$export{Perl_GetVars};
536     try_symbols(qw(PL_Vars PL_VarsPtr)) unless $ARGS{CCTYPE} eq 'GCC';
537 } else {
538     ++$skip{$_} foreach qw(Perl_init_global_struct Perl_free_global_struct);
539 }
540
541 # functions from *.sym files
542
543 my @syms = qw(globvar.sym);
544
545 # Symbols that are the public face of the PerlIO layers implementation
546 # These are in _addition to_ the public face of the abstraction
547 # and need to be exported to allow XS modules to implement layers
548 my @layer_syms = qw(
549                     PerlIOBase_binmode
550                     PerlIOBase_clearerr
551                     PerlIOBase_close
552                     PerlIOBase_dup
553                     PerlIOBase_eof
554                     PerlIOBase_error
555                     PerlIOBase_fileno
556                     PerlIOBase_open
557                     PerlIOBase_noop_fail
558                     PerlIOBase_noop_ok
559                     PerlIOBase_popped
560                     PerlIOBase_pushed
561                     PerlIOBase_read
562                     PerlIOBase_setlinebuf
563                     PerlIOBase_unread
564                     PerlIOBuf_bufsiz
565                     PerlIOBuf_close
566                     PerlIOBuf_dup
567                     PerlIOBuf_fill
568                     PerlIOBuf_flush
569                     PerlIOBuf_get_base
570                     PerlIOBuf_get_cnt
571                     PerlIOBuf_get_ptr
572                     PerlIOBuf_open
573                     PerlIOBuf_popped
574                     PerlIOBuf_pushed
575                     PerlIOBuf_read
576                     PerlIOBuf_seek
577                     PerlIOBuf_set_ptrcnt
578                     PerlIOBuf_tell
579                     PerlIOBuf_unread
580                     PerlIOBuf_write
581                     PerlIO_allocate
582                     PerlIO_apply_layera
583                     PerlIO_apply_layers
584                     PerlIO_arg_fetch
585                     PerlIO_debug
586                     PerlIO_define_layer
587                     PerlIO_find_layer
588                     PerlIO_isutf8
589                     PerlIO_layer_fetch
590                     PerlIO_list_alloc
591                     PerlIO_list_free
592                     PerlIO_modestr
593                     PerlIO_parse_layers
594                     PerlIO_pending
595                     PerlIO_perlio
596                     PerlIO_pop
597                     PerlIO_push
598                     PerlIO_sv_dup
599                     Perl_PerlIO_clearerr
600                     Perl_PerlIO_close
601                     Perl_PerlIO_context_layers
602                     Perl_PerlIO_eof
603                     Perl_PerlIO_error
604                     Perl_PerlIO_fileno
605                     Perl_PerlIO_fill
606                     Perl_PerlIO_flush
607                     Perl_PerlIO_get_base
608                     Perl_PerlIO_get_bufsiz
609                     Perl_PerlIO_get_cnt
610                     Perl_PerlIO_get_ptr
611                     Perl_PerlIO_read
612                     Perl_PerlIO_seek
613                     Perl_PerlIO_set_cnt
614                     Perl_PerlIO_set_ptrcnt
615                     Perl_PerlIO_setlinebuf
616                     Perl_PerlIO_stderr
617                     Perl_PerlIO_stdin
618                     Perl_PerlIO_stdout
619                     Perl_PerlIO_tell
620                     Perl_PerlIO_unread
621                     Perl_PerlIO_write
622 );
623 if ($ARGS{PLATFORM} eq 'netware') {
624     push(@layer_syms,'PL_def_layerlist','PL_known_layers','PL_perlio');
625 }
626
627 if ($define{'USE_PERLIO'}) {
628     # Export the symols that make up the PerlIO abstraction, regardless
629     # of its implementation - read from a file
630     push @syms, 'perlio.sym';
631
632     # This part is then dependent on how the abstraction is implemented
633     if ($define{'USE_SFIO'}) {
634         # Old legacy non-stdio "PerlIO"
635         ++$skip{$_} foreach @layer_syms;
636         ++$skip{perlsio_binmode};
637         # SFIO defines most of the PerlIO routines as macros
638         # So undo most of what $perlio_sym has just done - d'oh !
639         # Perhaps it would be better to list the ones which do exist
640         # And emit them
641         ++$skip{$_} foreach qw(
642                          PerlIO_canset_cnt
643                          PerlIO_clearerr
644                          PerlIO_close
645                          PerlIO_eof
646                          PerlIO_error
647                          PerlIO_exportFILE
648                          PerlIO_fast_gets
649                          PerlIO_fdopen
650                          PerlIO_fileno
651                          PerlIO_findFILE
652                          PerlIO_flush
653                          PerlIO_get_base
654                          PerlIO_get_bufsiz
655                          PerlIO_get_cnt
656                          PerlIO_get_ptr
657                          PerlIO_getc
658                          PerlIO_getname
659                          PerlIO_has_base
660                          PerlIO_has_cntptr
661                          PerlIO_importFILE
662                          PerlIO_open
663                          PerlIO_printf
664                          PerlIO_putc
665                          PerlIO_puts
666                          PerlIO_read
667                          PerlIO_releaseFILE
668                          PerlIO_reopen
669                          PerlIO_rewind
670                          PerlIO_seek
671                          PerlIO_set_cnt
672                          PerlIO_set_ptrcnt
673                          PerlIO_setlinebuf
674                          PerlIO_sprintf
675                          PerlIO_stderr
676                          PerlIO_stdin
677                          PerlIO_stdout
678                          PerlIO_stdoutf
679                          PerlIO_tell
680                          PerlIO_ungetc
681                          PerlIO_vprintf
682                          PerlIO_write
683                          PerlIO_perlio
684                          Perl_PerlIO_clearerr
685                          Perl_PerlIO_close
686                          Perl_PerlIO_eof
687                          Perl_PerlIO_error
688                          Perl_PerlIO_fileno
689                          Perl_PerlIO_fill
690                          Perl_PerlIO_flush
691                          Perl_PerlIO_get_base
692                          Perl_PerlIO_get_bufsiz
693                          Perl_PerlIO_get_cnt
694                          Perl_PerlIO_get_ptr
695                          Perl_PerlIO_read
696                          Perl_PerlIO_seek
697                          Perl_PerlIO_set_cnt
698                          Perl_PerlIO_set_ptrcnt
699                          Perl_PerlIO_setlinebuf
700                          Perl_PerlIO_stderr
701                          Perl_PerlIO_stdin
702                          Perl_PerlIO_stdout
703                          Perl_PerlIO_tell
704                          Perl_PerlIO_unread
705                          Perl_PerlIO_write
706                          PL_def_layerlist
707                          PL_known_layers
708                          PL_perlio
709                              );
710     }
711     else {
712         # PerlIO with layers - export implementation
713         try_symbols(@layer_syms, 'perlsio_binmode');
714     }
715 } else {
716         # -Uuseperlio
717         # Skip the PerlIO layer symbols - although
718         # nothing should have exported them anyway.
719         ++$skip{$_} foreach @layer_syms;
720         ++$skip{$_} foreach qw(
721                         perlsio_binmode
722                         PL_def_layerlist
723                         PL_known_layers
724                         PL_perlio
725                         PL_perlio_debug_fd
726                         PL_perlio_fd_refcnt
727                         PL_perlio_fd_refcnt_size
728                         PL_perlio_mutex
729                              );
730
731         # Also do NOT add abstraction symbols from $perlio_sym
732         # abstraction is done as #define to stdio
733         # Remaining remnants that _may_ be functions are handled below.
734 }
735
736 ###############################################################################
737
738 # At this point all skip lists should be completed, as we are about to test
739 # many symbols against them.
740
741 {
742     my %seen;
743     my ($embed) = setup_embed($ARGS{TARG_DIR});
744
745     foreach (@$embed) {
746         my ($flags, $retval, $func, @args) = @$_;
747         next unless $func;
748         if ($flags =~ /[AX]/ && $flags !~ /[xm]/ || $flags =~ /b/) {
749             # public API, so export
750
751             # If a function is defined twice, for example before and after
752             # an #else, only export its name once. Important to do this test
753             # within the block, as the *first* definition may have flags which
754             # mean "don't export"
755             next if $seen{$func}++;
756             $func = "Perl_$func" if $flags =~ /[pbX]/;
757             ++$export{$func} unless exists $skip{$func};
758         }
759     }
760 }
761
762 foreach (@syms) {
763     my $syms = $ARGS{TARG_DIR} . $_;
764     open my $global, '<', $syms or die "failed to open $syms: $!\n";
765     # Functions already have a Perl_ prefix
766     # Variables need a PL_ prefix
767     my $prefix = $syms =~ /var\.sym$/i ? 'PL_' : '';
768     while (<$global>) {
769         next unless /^([A-Za-z].*)/;
770         my $symbol = "$prefix$1";
771         ++$export{$symbol} unless exists $skip{$symbol};
772     }
773 }
774
775 # variables
776
777 if ($define{'MULTIPLICITY'} && $define{PERL_GLOBAL_STRUCT}) {
778     readvar('perlvars.h', \%export, sub { "Perl_" . $_[1] . $_[2] . "_ptr" });
779     # XXX AIX seems to want the perlvars.h symbols, for some reason
780     if ($ARGS{PLATFORM} eq 'aix' or $ARGS{PLATFORM} eq 'os2') { # OS/2 needs PL_thr_key
781         readvar('perlvars.h', \%export);
782     }
783 }
784 else {
785     unless ($define{'PERL_GLOBAL_STRUCT'}) {
786         readvar('perlvars.h', \%export);
787     }
788     unless ($define{MULTIPLICITY}) {
789         readvar('intrpvar.h', \%export);
790     }
791 }
792
793 # Oddities from PerlIO
794 # All have alternate implementations in perlio.c, so always exist.
795 # Should they be considered to be part of the API?
796 try_symbols(qw(
797                     PerlIO_binmode
798                     PerlIO_getpos
799                     PerlIO_init
800                     PerlIO_setpos
801                     PerlIO_sprintf
802                     PerlIO_tmpfile
803                     PerlIO_vsprintf
804              ));
805
806 if ($ARGS{PLATFORM} eq 'win32') {
807     try_symbols(qw(
808                                  setgid
809                                  setuid
810                                  win32_free_childdir
811                                  win32_free_childenv
812                                  win32_get_childdir
813                                  win32_get_childenv
814                                  win32_spawnvp
815                  ));
816 }
817
818 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
819     try_symbols(qw(
820                             Perl_init_os_extras
821                             Perl_thread_create
822                             Perl_win32_init
823                             Perl_win32_term
824                             RunPerl
825                             win32_async_check
826                             win32_errno
827                             win32_environ
828                             win32_abort
829                             win32_fstat
830                             win32_stat
831                             win32_pipe
832                             win32_popen
833                             win32_pclose
834                             win32_rename
835                             win32_setmode
836                             win32_chsize
837                             win32_lseek
838                             win32_tell
839                             win32_dup
840                             win32_dup2
841                             win32_open
842                             win32_close
843                             win32_eof
844                             win32_isatty
845                             win32_read
846                             win32_write
847                             win32_mkdir
848                             win32_rmdir
849                             win32_chdir
850                             win32_flock
851                             win32_execv
852                             win32_execvp
853                             win32_htons
854                             win32_ntohs
855                             win32_htonl
856                             win32_ntohl
857                             win32_inet_addr
858                             win32_inet_ntoa
859                             win32_socket
860                             win32_bind
861                             win32_listen
862                             win32_accept
863                             win32_connect
864                             win32_send
865                             win32_sendto
866                             win32_recv
867                             win32_recvfrom
868                             win32_shutdown
869                             win32_closesocket
870                             win32_ioctlsocket
871                             win32_setsockopt
872                             win32_getsockopt
873                             win32_getpeername
874                             win32_getsockname
875                             win32_gethostname
876                             win32_gethostbyname
877                             win32_gethostbyaddr
878                             win32_getprotobyname
879                             win32_getprotobynumber
880                             win32_getservbyname
881                             win32_getservbyport
882                             win32_select
883                             win32_endhostent
884                             win32_endnetent
885                             win32_endprotoent
886                             win32_endservent
887                             win32_getnetent
888                             win32_getnetbyname
889                             win32_getnetbyaddr
890                             win32_getprotoent
891                             win32_getservent
892                             win32_sethostent
893                             win32_setnetent
894                             win32_setprotoent
895                             win32_setservent
896                             win32_getenv
897                             win32_putenv
898                             win32_perror
899                             win32_malloc
900                             win32_calloc
901                             win32_realloc
902                             win32_free
903                             win32_sleep
904                             win32_times
905                             win32_access
906                             win32_alarm
907                             win32_chmod
908                             win32_open_osfhandle
909                             win32_get_osfhandle
910                             win32_ioctl
911                             win32_link
912                             win32_unlink
913                             win32_utime
914                             win32_gettimeofday
915                             win32_uname
916                             win32_wait
917                             win32_waitpid
918                             win32_kill
919                             win32_str_os_error
920                             win32_opendir
921                             win32_readdir
922                             win32_telldir
923                             win32_seekdir
924                             win32_rewinddir
925                             win32_closedir
926                             win32_longpath
927                             win32_ansipath
928                             win32_os_id
929                             win32_getpid
930                             win32_crypt
931                             win32_dynaload
932                             win32_clearenv
933                             win32_stdin
934                             win32_stdout
935                             win32_stderr
936                             win32_ferror
937                             win32_feof
938                             win32_strerror
939                             win32_fprintf
940                             win32_printf
941                             win32_vfprintf
942                             win32_vprintf
943                             win32_fread
944                             win32_fwrite
945                             win32_fopen
946                             win32_fdopen
947                             win32_freopen
948                             win32_fclose
949                             win32_fputs
950                             win32_fputc
951                             win32_ungetc
952                             win32_getc
953                             win32_fileno
954                             win32_clearerr
955                             win32_fflush
956                             win32_ftell
957                             win32_fseek
958                             win32_fgetpos
959                             win32_fsetpos
960                             win32_rewind
961                             win32_tmpfile
962                             win32_setbuf
963                             win32_setvbuf
964                             win32_flushall
965                             win32_fcloseall
966                             win32_fgets
967                             win32_gets
968                             win32_fgetc
969                             win32_putc
970                             win32_puts
971                             win32_getchar
972                             win32_putchar
973                  ));
974 }
975 elsif ($ARGS{PLATFORM} eq 'vms') {
976     try_symbols(qw(
977                       Perl_cando
978                       Perl_cando_by_name
979                       Perl_closedir
980                       Perl_csighandler_init
981                       Perl_do_rmdir
982                       Perl_fileify_dirspec
983                       Perl_fileify_dirspec_ts
984                       Perl_fileify_dirspec_utf8
985                       Perl_fileify_dirspec_utf8_ts
986                       Perl_flex_fstat
987                       Perl_flex_lstat
988                       Perl_flex_stat
989                       Perl_kill_file
990                       Perl_my_chdir
991                       Perl_my_chmod
992                       Perl_my_crypt
993                       Perl_my_endpwent
994                       Perl_my_fclose
995                       Perl_my_fdopen
996                       Perl_my_fgetname
997                       Perl_my_flush
998                       Perl_my_fwrite
999                       Perl_my_gconvert
1000                       Perl_my_getenv
1001                       Perl_my_getenv_len
1002                       Perl_my_getlogin
1003                       Perl_my_getpwnam
1004                       Perl_my_getpwuid
1005                       Perl_my_gmtime
1006                       Perl_my_kill
1007                       Perl_my_localtime
1008                       Perl_my_mkdir
1009                       Perl_my_sigaction
1010                       Perl_my_symlink
1011                       Perl_my_time
1012                       Perl_my_tmpfile
1013                       Perl_my_trnlnm
1014                       Perl_my_utime
1015                       Perl_my_waitpid
1016                       Perl_opendir
1017                       Perl_pathify_dirspec
1018                       Perl_pathify_dirspec_ts
1019                       Perl_pathify_dirspec_utf8
1020                       Perl_pathify_dirspec_utf8_ts
1021                       Perl_readdir
1022                       Perl_readdir_r
1023                       Perl_rename
1024                       Perl_rmscopy
1025                       Perl_rmsexpand
1026                       Perl_rmsexpand_ts
1027                       Perl_rmsexpand_utf8
1028                       Perl_rmsexpand_utf8_ts
1029                       Perl_seekdir
1030                       Perl_sig_to_vmscondition
1031                       Perl_telldir
1032                       Perl_tounixpath
1033                       Perl_tounixpath_ts
1034                       Perl_tounixpath_utf8
1035                       Perl_tounixpath_utf8_ts
1036                       Perl_tounixspec
1037                       Perl_tounixspec_ts
1038                       Perl_tounixspec_utf8
1039                       Perl_tounixspec_utf8_ts
1040                       Perl_tovmspath
1041                       Perl_tovmspath_ts
1042                       Perl_tovmspath_utf8
1043                       Perl_tovmspath_utf8_ts
1044                       Perl_tovmsspec
1045                       Perl_tovmsspec_ts
1046                       Perl_tovmsspec_utf8
1047                       Perl_tovmsspec_utf8_ts
1048                       Perl_trim_unixpath
1049                       Perl_vms_case_tolerant
1050                       Perl_vms_do_aexec
1051                       Perl_vms_do_exec
1052                       Perl_vms_image_init
1053                       Perl_vms_realpath
1054                       Perl_vmssetenv
1055                       Perl_vmssetuserlnm
1056                       Perl_vmstrnenv
1057                       PerlIO_openn
1058                  ));
1059 }
1060 elsif ($ARGS{PLATFORM} eq 'os2') {
1061     try_symbols(qw(
1062                       ctermid
1063                       get_sysinfo
1064                       Perl_OS2_init
1065                       Perl_OS2_init3
1066                       Perl_OS2_term
1067                       OS2_Perl_data
1068                       dlopen
1069                       dlsym
1070                       dlerror
1071                       dlclose
1072                       dup2
1073                       dup
1074                       my_tmpfile
1075                       my_tmpnam
1076                       my_flock
1077                       my_rmdir
1078                       my_mkdir
1079                       my_getpwuid
1080                       my_getpwnam
1081                       my_getpwent
1082                       my_setpwent
1083                       my_endpwent
1084                       fork_with_resources
1085                       croak_with_os2error
1086                       setgrent
1087                       endgrent
1088                       getgrent
1089                       malloc_mutex
1090                       threads_mutex
1091                       nthreads
1092                       nthreads_cond
1093                       os2_cond_wait
1094                       os2_stat
1095                       os2_execname
1096                       async_mssleep
1097                       msCounter
1098                       InfoTable
1099                       pthread_join
1100                       pthread_create
1101                       pthread_detach
1102                       XS_Cwd_change_drive
1103                       XS_Cwd_current_drive
1104                       XS_Cwd_extLibpath
1105                       XS_Cwd_extLibpath_set
1106                       XS_Cwd_sys_abspath
1107                       XS_Cwd_sys_chdir
1108                       XS_Cwd_sys_cwd
1109                       XS_Cwd_sys_is_absolute
1110                       XS_Cwd_sys_is_relative
1111                       XS_Cwd_sys_is_rooted
1112                       XS_DynaLoader_mod2fname
1113                       XS_File__Copy_syscopy
1114                       Perl_Register_MQ
1115                       Perl_Deregister_MQ
1116                       Perl_Serve_Messages
1117                       Perl_Process_Messages
1118                       init_PMWIN_entries
1119                       PMWIN_entries
1120                       Perl_hab_GET
1121                       loadByOrdinal
1122                       pExtFCN
1123                       os2error
1124                       ResetWinError
1125                       CroakWinError
1126                       PL_do_undump
1127                  ));
1128 }
1129 elsif ($ARGS{PLATFORM} eq 'netware') {
1130     try_symbols(qw(
1131                         Perl_init_os_extras
1132                         Perl_thread_create
1133                         Perl_nw5_init
1134                         RunPerl
1135                         AllocStdPerl
1136                         FreeStdPerl
1137                         do_spawn2
1138                         do_aspawn
1139                         nw_uname
1140                         nw_stdin
1141                         nw_stdout
1142                         nw_stderr
1143                         nw_feof
1144                         nw_ferror
1145                         nw_fopen
1146                         nw_fclose
1147                         nw_clearerr
1148                         nw_getc
1149                         nw_fgets
1150                         nw_fputc
1151                         nw_fputs
1152                         nw_fflush
1153                         nw_ungetc
1154                         nw_fileno
1155                         nw_fdopen
1156                         nw_freopen
1157                         nw_fread
1158                         nw_fwrite
1159                         nw_setbuf
1160                         nw_setvbuf
1161                         nw_vfprintf
1162                         nw_ftell
1163                         nw_fseek
1164                         nw_rewind
1165                         nw_tmpfile
1166                         nw_fgetpos
1167                         nw_fsetpos
1168                         nw_dup
1169                         nw_access
1170                         nw_chmod
1171                         nw_chsize
1172                         nw_close
1173                         nw_dup2
1174                         nw_flock
1175                         nw_isatty
1176                         nw_link
1177                         nw_lseek
1178                         nw_stat
1179                         nw_mktemp
1180                         nw_open
1181                         nw_read
1182                         nw_rename
1183                         nw_setmode
1184                         nw_unlink
1185                         nw_utime
1186                         nw_write
1187                         nw_chdir
1188                         nw_rmdir
1189                         nw_closedir
1190                         nw_opendir
1191                         nw_readdir
1192                         nw_rewinddir
1193                         nw_seekdir
1194                         nw_telldir
1195                         nw_htonl
1196                         nw_htons
1197                         nw_ntohl
1198                         nw_ntohs
1199                         nw_accept
1200                         nw_bind
1201                         nw_connect
1202                         nw_endhostent
1203                         nw_endnetent
1204                         nw_endprotoent
1205                         nw_endservent
1206                         nw_gethostbyaddr
1207                         nw_gethostbyname
1208                         nw_gethostent
1209                         nw_gethostname
1210                         nw_getnetbyaddr
1211                         nw_getnetbyname
1212                         nw_getnetent
1213                         nw_getpeername
1214                         nw_getprotobyname
1215                         nw_getprotobynumber
1216                         nw_getprotoent
1217                         nw_getservbyname
1218                         nw_getservbyport
1219                         nw_getservent
1220                         nw_getsockname
1221                         nw_getsockopt
1222                         nw_inet_addr
1223                         nw_listen
1224                         nw_socket
1225                         nw_recv
1226                         nw_recvfrom
1227                         nw_select
1228                         nw_send
1229                         nw_sendto
1230                         nw_sethostent
1231                         nw_setnetent
1232                         nw_setprotoent
1233                         nw_setservent
1234                         nw_setsockopt
1235                         nw_inet_ntoa
1236                         nw_shutdown
1237                         nw_crypt
1238                         nw_execvp
1239                         nw_kill
1240                         nw_Popen
1241                         nw_Pclose
1242                         nw_Pipe
1243                         nw_times
1244                         nw_waitpid
1245                         nw_getpid
1246                         nw_spawnvp
1247                         nw_os_id
1248                         nw_open_osfhandle
1249                         nw_get_osfhandle
1250                         nw_abort
1251                         nw_sleep
1252                         nw_wait
1253                         nw_dynaload
1254                         nw_strerror
1255                         fnFpSetMode
1256                         fnInsertHashListAddrs
1257                         fnGetHashListAddrs
1258                         Perl_deb
1259                         Perl_sv_setsv
1260                         Perl_sv_catsv
1261                         Perl_sv_catpvn
1262                         Perl_sv_2pv
1263                         nw_freeenviron
1264                         Remove_Thread_Ctx
1265                  ));
1266 }
1267
1268 # When added this code was only run for Win32 and WinCE
1269 # Currently only Win32 links static extensions into the shared library.
1270 # The WinCE makefile doesn't appear to support static extensions, so this code
1271 # can't have any effect there.
1272 # The NetWare Makefile doesn't support static extensions (and hardcodes the
1273 # list of dynamic extensions, and the rules to build them)
1274 # For *nix (and presumably OS/2) with a shared libperl, Makefile.SH compiles
1275 # static extensions with -fPIC, but links them to perl, not libperl.so
1276 # The VMS build scripts don't yet implement static extensions at all.
1277
1278 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1279     # records of type boot_module for statically linked modules (except Dynaloader)
1280     my $static_ext = $Config{static_ext} // "";
1281     $static_ext =~ s/\//__/g;
1282     $static_ext =~ s/\bDynaLoader\b//;
1283     try_symbols(map {"boot_$_"} grep {/\S/} split /\s+/, $static_ext);
1284     try_symbols("init_Win32CORE") if $static_ext =~ /\bWin32CORE\b/;
1285 }
1286
1287 if ($ARGS{PLATFORM} eq 'os2') {
1288     my (%mapped, @missing);
1289     open MAP, 'miniperl.map' or die 'Cannot read miniperl.map';
1290     /^\s*[\da-f:]+\s+(\w+)/i and $mapped{$1}++ foreach <MAP>;
1291     close MAP or die 'Cannot close miniperl.map';
1292
1293     @missing = grep { !exists $mapped{$_} }
1294                     keys %export;
1295     @missing = grep { !exists $exportperlmalloc{$_} } @missing;
1296     delete $export{$_} foreach @missing;
1297 }
1298
1299 ###############################################################################
1300
1301 # Now all symbols should be defined because next we are going to output them.
1302
1303 # Start with platform specific headers:
1304
1305 if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1306     my $dll = $define{PERL_DLL} ? $define{PERL_DLL} =~ s/\.dll$//ir
1307         : "perl$Config{api_revision}$Config{api_version}";
1308     print "LIBRARY $dll\n";
1309     # The DESCRIPTION module definition file statement is not supported
1310     # by VC7 onwards.
1311     if ($ARGS{CCTYPE} =~ /^(?:MSVC60|GCC)$/) {
1312         print "DESCRIPTION 'Perl interpreter'\n";
1313     }
1314     print "EXPORTS\n";
1315 }
1316 elsif ($ARGS{PLATFORM} eq 'os2') {
1317     (my $v = $]) =~ s/(\d\.\d\d\d)(\d\d)$/$1_$2/;
1318     $v .= '-thread' if $Config{archname} =~ /-thread/;
1319     (my $dll = $define{PERL_DLL}) =~ s/\.dll$//i;
1320     $v .= "\@$Config{perl_patchlevel}" if $Config{perl_patchlevel};
1321     my $d = "DESCRIPTION '\@#perl5-porters\@perl.org:$v#\@ Perl interpreter, configured as $Config{config_args}'";
1322     $d = substr($d, 0, 249) . "...'" if length $d > 253;
1323     print <<"---EOP---";
1324 LIBRARY '$dll' INITINSTANCE TERMINSTANCE
1325 $d
1326 STACKSIZE 32768
1327 CODE LOADONCALL
1328 DATA LOADONCALL NONSHARED MULTIPLE
1329 EXPORTS
1330 ---EOP---
1331 }
1332 elsif ($ARGS{PLATFORM} eq 'aix') {
1333     my $OSVER = `uname -v`;
1334     chop $OSVER;
1335     my $OSREL = `uname -r`;
1336     chop $OSREL;
1337     if ($OSVER > 4 || ($OSVER == 4 && $OSREL >= 3)) {
1338         print "#! ..\n";
1339     } else {
1340         print "#!\n";
1341     }
1342 }
1343 elsif ($ARGS{PLATFORM} eq 'netware') {
1344         if ($ARGS{FILETYPE} eq 'def') {
1345         print "LIBRARY perl$Config{api_revision}$Config{api_version}\n";
1346         print "DESCRIPTION 'Perl interpreter for NetWare'\n";
1347         print "EXPORTS\n";
1348         }
1349 }
1350
1351 # Then the symbols
1352
1353 my @symbols = $fold ? sort {lc $a cmp lc $b} keys %export : sort keys %export;
1354 foreach my $symbol (@symbols) {
1355     if ($ARGS{PLATFORM} =~ /^win(?:32|ce)$/) {
1356         print "\t$symbol\n";
1357     }
1358     elsif ($ARGS{PLATFORM} eq 'os2') {
1359         printf qq(    %-31s \@%s\n),
1360           qq("$symbol"), $ordinal{$symbol} || ++$sym_ord;
1361         printf qq(    %-31s \@%s\n),
1362           qq("$exportperlmalloc{$symbol}" = "$symbol"),
1363           $ordinal{$exportperlmalloc{$symbol}} || ++$sym_ord
1364           if $exportperlmalloc and exists $exportperlmalloc{$symbol};
1365     }
1366     elsif ($ARGS{PLATFORM} eq 'netware') {
1367         print "\t$symbol,\n";
1368     } else {
1369         print "$symbol\n";
1370     }
1371 }
1372
1373 # Then platform specific footers.
1374
1375 if ($ARGS{PLATFORM} eq 'os2') {
1376     print <<EOP;
1377     dll_perlmain=main
1378     fill_extLibpath
1379     dir_subst
1380     Perl_OS2_handler_install
1381
1382 ; LAST_ORDINAL=$sym_ord
1383 EOP
1384 }
1385
1386 1;